The SBB freestanding cylinder is the optimum solution for DHW heating in conjunction with a heat pump in a detached or two-family house. With the SOL versions, it is also possible to integrate a solar thermal system. The cylinder's inner values are particularly impressive. Its specially designed smooth indirect coils are particularly good at transferring heat efficiently. At the same time, they are just as resistant to scale deposits as the entire inner casing, which features a special enamel coating.